Valve seating and pulling device



Patented Nov. 19, 1929 UNITED STATES GLOYDE E. LUKEH'ART, OF GARBEB, OKLAHOMA VALVE SEATING AND PULLING- DEVICE I Application filed October 31, 1927. Serial No. 229,947.

This invention relates generally to hand and hoist-line implements, but specifically has to do with improvements in combination valve pulling and seating devices.

An important object of the invention resides in the production of a device of the above-mentioned character adapted to seat the lower valve in the working barrel or cylinder by dropping or jarring with the upper valve to which pumping rods are attached without injury to either upper or lower valve arts.

p Another object is to provide means whereby the operator may pull both the lower and upper valves from the well at one operation of pulling the pumping rods.

Still another object of the invention is to provide resilient means for locking certain parts in one position, thus permitting certain threaded engaging means, in "the form of a tap, and its associated rods, to revolve in one direction.

A still further object is to provide means for self-aligning certain parts to be connected and subsequently withdrawn in one operation.

With. these objects in view, together with others which will appear as the description proceeds, the invention resides in the novel formation, combination, and arrangement of parts, all as will be described more fully hereinafter, illustrated in the drawings, and particularly pointed out in the claim.

In said drawings:

Figure 1 is an elevation of the tool in the position it would assume when Withdrawing the valves from the well.

Fig. 2 is a central vertical longitudinal sectional View, illustrating the relative positions of the component parts of the device prior to engagement with a pronged member secured to the lower or stand valve.

Fig. 3 is an elevation, partly in section, of said pronged member.

Fig. 4 is a top plan view thereof.

Fig. 5 is a detached top plan view of a sleeve member, to illustrate the longitudinally fluting thereof and the notches in the face thereof; and

Fig. 6 is an inverted plan View of an annulus to illustrate the ratchet teeth thereof.

Referring now more in particular to the accompanying drawings, wherein like characters of reference denote similar parts throughout the severalviews, let 10 indicate the member which contains the bottom cage 11 adapted for attachment to the lower portionof the regular traveling valve. As clearlyshoW-n in Fig. 2, said member 10 is reduced in diameter just below said cage 11 to'define a shoulder 12, said reduced portion being threaded, as indicated at 13 and again red-uoed in diameter to define the threaded tap 14.

To the threaded reduced portion 13 and said tap 14 is attached a sleeve member 15, the lower portion thereof being cored and suitably machined to define prong-members 16, while the top face thereof is provided with a series of radial notches 17, said member 15 being further longitudinally fluted as indicated at 18, Figs. land '5.

From the foregoing it is apparent thatsaid i F sleeve member '15 may be screwed onto sa d member 10 foran appreciable distance without interference. However, to "prevent said member 15 from turning or unscrewing upon member 10, when the well is pumping, I providea yieldable device comprising the ring 19 .andann ulus 20, resiliently separated by means of a coiled spring21. 'Upon inspection ofFig. 2 itwill be observed that said ring 19 abuts said shoulder '12 and that the partsust described loosely encircle'said reduced portionthreadedlyengaging said sleeve 15. Said yieldable device includes ratchet teeth 22, carried by said annulus'20 and adapted to cooperate with said notches 17 of said sleeve 15. It is therefore quite obvious that the sleeve 15 maybe rotated to the right, (Fig. 1)., since the particular disposition of said notches 17 andflteeth-22, causes the former to smoothly ride over the latter and thus permit the I screwing of'said sleeve 15*ontothe threadedportion-sofsaid member 10 until thes-pring 21 iscompressed, to substantially the condition indicated in Fig. '1. .It is equally apparent that the cooperation of said notches 17 and teeth 22 prevents the unscrewing of said sleeve sleeve and a spring-pressed annulus encir- 15 from said member 10. In other words, the cling said member and having teeth adapted sleeve 15, when in the position indicated in to engage the notches in said sleeve.

Fig. 1 turns in unison with said member 10, and this is the prevailing condition during the pumping of the well.

The other portion of the device comprises the tubular member 23, which is internally threaded, as indicated at 24, for attachment to the well-known lower or stationary valve. The upper portion of said member 23 is cored and machined to define prongs 25, similar to said prongs 16 of said sleeve 15, but alternatelydisposed, the upper portion of said prongs 25 being bridged by a boss 26 having a central threaded aperture 27 for engagement with the tap let, as will presently appear.

When the operator wishes to elevate the valves from the oil well, the usual pumping rods are rotated and since the part 10 is secured thereto it likewise rotates and with the parts in the position indicated in Fig. 2 the operator jars down with the rods untilthe prongs 16 interfit the prongs 25 of said member 23 carrying the stationary valve. The continued rotation of the threaded member 10 causes said sleeve 15 to rise thereon, compressing the spring 21 and the tap 14: now engages the threaded boss 26, thus locking together said members 23, 15 and 10, and permitting removal of both valves in one operation.

It therefore appears that prior to the engagement of the member 23 and sleeve 15, said tap 141- is carried at a position slightly elevated above the threaded boss 26 and hence the chances of jamming the threads is reduced to a minimum. In view of the prong arrangement 16-25, the device is substantially selfaligning and through the medium of the fluted portions 18 the oil may pass freely by the sleeve member 15 and still act as a true guide.

By providing the ratchet teeth 22 of the yieldable device, the tap 14% is locked into working position by first being threaded into the sleeve member 15, thus allowing the pumping rods and said tap to revolve in one direction and in view of the threaded disposition of said member 10, said tap advances to engage the threaded boss 26 of said member 23, as aforesaid. At no time is the sleeve member 15 loose on said tap 14:. This is a feature of some importance.

I claim In a device of the character described, in

cluding a standing valve and a working valve, a member secured to and depending from the working valve, a tap depending from said member, a sleeve threadedly engaging said tap and provided with notches in its top face and having prongs projecting below said tap, a tubular member adapted to be attached to a standing valve and having a face surface adapted to be engaged by the prongs on said In testimony whereof I aflix my signature.

GLOYDE E. LUKEHART. 

